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Meng Q, Ning J, Lu J, Zhang J, Zu M, Zhang J, Han X, Zheng H, Gong Y, Hao X, Xiong Y, Gu F, Han W, Fu W, Wang J, Ding S. Cmtm4 deficiency exacerbates colitis by inducing gut dysbiosis and S100A8/9 expression. J Genet Genomics 2024:S1673-8527(24)00062-6. [PMID: 38575111 DOI: 10.1016/j.jgg.2024.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 03/28/2024] [Accepted: 03/28/2024] [Indexed: 04/06/2024]
Abstract
The dysfunction of innate immunity components is one of the major drivers for ulcerative colitis (UC), and increasing reports indicate that gut microbiome serves as an intermediate between genetic mutations and UC development. Here, we find that the IL-17 receptor subunit, CMTM4, is reduced in UC patients and DSS-induced colitis. The deletion of CMTM4 (Cmtm4-/-) in mice leads to a higher susceptibility to DSS-induced colitis in comparison to wildtype, and the gut microbiome significantly changes in the composition. The causal role of gut microbiome is confirmed with co-housing experiment. We further identify that S100a8/9 is significantly up-regulated in Cmtm4-/- colitis, with the block of its receptor RAGE that reverses the phenotype associated with the CMTM4 deficiency. CMTM4 deficiency rather suppresses S100a8/9 expression in vitro via the IL17 pathway, further supporting that the elevation of S100a8/9 in vivo is most likely a result of microbial dysbiosis. Taken together, the results suggest that CMTM4 is involved in the maintenance of the intestinal homeostasis, suppression of S100a8/9, and prevention of the colitis development. Our study further shows CMTM4 as a crucial innate immunity component, confirming its important role in the UC development and providing insights into potential targets for development of future therapies.
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Affiliation(s)
- Qiao Meng
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory for Helicobacter Pylori Infection and Upper Gastrointestinal Diseases (BZ0371), Beijing, China
| | - Jing Ning
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory for Helicobacter Pylori Infection and Upper Gastrointestinal Diseases (BZ0371), Beijing, China
| | - Jingjing Lu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Jing Zhang
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory for Helicobacter Pylori Infection and Upper Gastrointestinal Diseases (BZ0371), Beijing, China
| | - Ming Zu
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory for Helicobacter Pylori Infection and Upper Gastrointestinal Diseases (BZ0371), Beijing, China
| | - Jing Zhang
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory for Helicobacter Pylori Infection and Upper Gastrointestinal Diseases (BZ0371), Beijing, China
| | - Xiurui Han
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory for Helicobacter Pylori Infection and Upper Gastrointestinal Diseases (BZ0371), Beijing, China
| | - Huiling Zheng
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory for Helicobacter Pylori Infection and Upper Gastrointestinal Diseases (BZ0371), Beijing, China
| | - Yueqing Gong
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory for Helicobacter Pylori Infection and Upper Gastrointestinal Diseases (BZ0371), Beijing, China
| | - Xinyu Hao
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory for Helicobacter Pylori Infection and Upper Gastrointestinal Diseases (BZ0371), Beijing, China
| | - Ying Xiong
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory for Helicobacter Pylori Infection and Upper Gastrointestinal Diseases (BZ0371), Beijing, China
| | - Fang Gu
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory for Helicobacter Pylori Infection and Upper Gastrointestinal Diseases (BZ0371), Beijing, China
| | - Wenling Han
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, NHC Key Laboratory of Medical Immunology (Peking University), Beijing, China; Peking University Center for Human Disease Genomics, Beijing, China
| | - Weiwei Fu
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory for Helicobacter Pylori Infection and Upper Gastrointestinal Diseases (BZ0371), Beijing, China.
| | - Jun Wang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.
| | - Shigang Ding
- Department of Gastroenterology, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory for Helicobacter Pylori Infection and Upper Gastrointestinal Diseases (BZ0371), Beijing, China.
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